The stress-strain behavior of joint components in the surrounding of oak dowels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F19%3A00509933" target="_blank" >RIV/68378297:_____/19:00509933 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/19:43916496

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The stress-strain behavior of joint components in the surrounding of oak dowels

Popis výsledku v původním jazyce

The timber structures cannot do without traditional all-wooden joints, especially, when historically valuable constructions are being reconstructed. The connections are usually the masterpieces that testify to the high carpentry skills and knowledges of the overall mechanical behavior. The mutual position of joint components is most commonly fixed by means of wooden dowels. However, the know-how for designing of these traditional joints remained only in the carpentry masters' mind and they were forwarded by long-term experiences to following generations. Therefore, the authors deal with the mechanical behavior of oak dowels within a comprehensive project granted by Technology agency of Czech Republic. This study addresses issue of missing available information about deformations experienced by joint components in the surrounding of oak dowels. The timber joint components made from Norway spruce (Picea Abies L. Karst.) were connected using cylindrical wooden dowels with diameter of 20, 24 and 30 mm made from English oak (Quercus robur L.). The mechanical force acting in double-shear mode was applied as a tensile loading parallel, resp. as a compressive loading parallel, perpendicular and at 45o to timber grain direction within the joint components. The experiments were done on full-scale specimens meeting the requirements listed in European standard EN 383. A statistically appropriate number of specimens (almost 300) were tested. The results characterize the timber embedment strength and joints load-bearing capacity, which are necessary for designing of structures according to the limit states theory.

Název v anglickém jazyce

The stress-strain behavior of joint components in the surrounding of oak dowels

Popis výsledku anglicky

The timber structures cannot do without traditional all-wooden joints, especially, when historically valuable constructions are being reconstructed. The connections are usually the masterpieces that testify to the high carpentry skills and knowledges of the overall mechanical behavior. The mutual position of joint components is most commonly fixed by means of wooden dowels. However, the know-how for designing of these traditional joints remained only in the carpentry masters' mind and they were forwarded by long-term experiences to following generations. Therefore, the authors deal with the mechanical behavior of oak dowels within a comprehensive project granted by Technology agency of Czech Republic. This study addresses issue of missing available information about deformations experienced by joint components in the surrounding of oak dowels. The timber joint components made from Norway spruce (Picea Abies L. Karst.) were connected using cylindrical wooden dowels with diameter of 20, 24 and 30 mm made from English oak (Quercus robur L.). The mechanical force acting in double-shear mode was applied as a tensile loading parallel, resp. as a compressive loading parallel, perpendicular and at 45o to timber grain direction within the joint components. The experiments were done on full-scale specimens meeting the requirements listed in European standard EN 383. A statistically appropriate number of specimens (almost 300) were tested. The results characterize the timber embedment strength and joints load-bearing capacity, which are necessary for designing of structures according to the limit states theory.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/TJ01000412" target="_blank" >TJ01000412: Dubový spojovací prostředek v dřevěných konstrukcích: podklady pro normativní ukotvení</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů